lily/paper-outputter.cc

   1 /*
   2   paper-outputter.cc -- implement Paper_outputter
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7                  Jan Nieuwenhuizen <janneke@gnu.org>
   8 */
   9
  10 #include <math.h>
  11 #include <time.h>
  12
  13 #include "book-paper-def.hh"
  14 #include "array.hh"
  15 #include "dimensions.hh"
  16 #include "font-metric.hh"
  17 #include "input-smob.hh"
  18 #include "lily-guile.hh"
  19 #include "lily-version.hh"
  20 #include "ly-module.hh"
  21 #include "main.hh"
  22 #include "page.hh"
  23 #include "paper-book.hh"
  24 #include "output-def.hh"
  25 #include "paper-line.hh"
  26 #include "paper-outputter.hh"
  27 #include "file-name.hh"
  28 #include "scm-hash.hh"
  29 #include "stencil.hh"
  30 #include "string-convert.hh"
  31 #include "warn.hh"
  32
  33 // JUNKME
  34 extern SCM stencil2line (Stencil* stil, bool is_title = false);
  35
  36 Paper_outputter::Paper_outputter (String filename)
  37 {
  38   filename_ = filename;
  39   file_ = scm_open_file (scm_makfrom0str (filename.to_str0 ()),
  40                          scm_makfrom0str ("w"));
  41
  42   String module_name = "scm output-" + output_format_global;
  43   output_module_ = scm_c_resolve_module (module_name.to_str0 ());
  44 }
  45
  46 Paper_outputter::~Paper_outputter ()
  47 {
  48   scm_close_port (file_);
  49   file_ = SCM_EOL;
  50 }
  51
  52 void
  53 Paper_outputter::output_scheme (SCM scm)
  54 {
  55   scm_display (scm_eval (scm, output_module_), file_);
  56 }
  57
  58 void
  59 Paper_outputter::output_metadata (Output_def *paper, SCM scopes)
  60 {
  61   SCM fields = SCM_EOL;
  62   for (int i = dump_header_fieldnames_global.size (); i--; )
  63     fields
  64       = scm_cons (ly_symbol2scm (dump_header_fieldnames_global[i].to_str0 ()),
  65                  fields);
  66
  67   File_name file_name (filename_);
  68   file_name.ext_ = "";
  69   String basename = file_name.to_string ();
  70   output_scheme (scm_list_n (ly_symbol2scm ("output-scopes"),
  71                              paper->self_scm (),
  72                              ly_quote_scm (scopes),
  73                              ly_quote_scm (fields),
  74                              scm_makfrom0str (basename.to_str0 ()),
  75                              SCM_UNDEFINED));
  76 }
  77
  78 void
  79 Paper_outputter::output_header (Output_def * bookpaper,
  80                                 SCM scopes,
  81                                 int page_count,
  82                                 bool is_classic)
  83 {
  84   String creator = gnu_lilypond_version_string ();
  85   creator += " (http://lilypond.org)";
  86   time_t t (time (0));
  87   String time_stamp = ctime (&t);
  88   time_stamp = time_stamp.left_string (time_stamp.length () - 1)
  89     + " " + *tzname;
  90   output_scheme (scm_list_n (ly_symbol2scm ("header"),
  91                              scm_makfrom0str (creator.to_str0 ()),
  92                              scm_makfrom0str (time_stamp.to_str0 ()),
  93                              bookpaper->self_scm (), // FIXME.
  94                              scm_int2num (page_count),
  95                              ly_bool2scm (is_classic),
  96                              SCM_UNDEFINED));
  97
  98   output_metadata (bookpaper, scopes);
  99   output_scheme (scm_list_2 (ly_symbol2scm ("define-fonts"),
 100                              bookpaper->self_scm ()));
 101   output_scheme (scm_list_1 (ly_symbol2scm ("header-end")));
 102 }
 103
 104 void
 105 Paper_outputter::output_line (SCM line, Offset *origin, bool is_last)
 106 {
 107   Paper_line *p = unsmob_paper_line (line);
 108   Offset dim = p->dim ();
 109   if (dim[Y_AXIS] > 50 CM)
 110     {
 111       programming_error (to_string ("Improbable line height: %f",
 112                                     dim[Y_AXIS]));
 113       dim[Y_AXIS] = 50 CM;
 114     }
 115
 116
 117   output_scheme (scm_list_3 (ly_symbol2scm ("start-system"),
 118                              ly_quote_scm (ly_offset2scm (*origin)),
 119                              ly_quote_scm (ly_offset2scm (dim))));
 120
 121
 122   output_stencil (p->to_stencil ());
 123
 124   (*origin)[Y_AXIS] += dim[Y_AXIS];
 125   output_scheme (scm_list_2 (ly_symbol2scm ("stop-system"),
 126                              ly_bool2scm (is_last)));
 127 }
 128
 129 void
 130 Paper_outputter::output_page (Page *p, bool is_last)
 131 {
 132   Stencil page_stencil =  p->to_stencil ();
 133   output_scheme (scm_list_1 (ly_symbol2scm ("start-page")));
 134   output_scheme (scm_list_3 (ly_symbol2scm ("start-system"),
 135                              ly_quote_scm (ly_offset2scm (Offset (0, 0))),
 136                              ly_quote_scm (ly_offset2scm (Offset (0, 0)))));
 137
 138
 139   output_stencil (page_stencil);
 140
 141   output_scheme (scm_list_2 (ly_symbol2scm ("stop-system"), SCM_BOOL_T));
 142   output_scheme (scm_list_2 (ly_symbol2scm ("stop-page"),
 143                              ly_bool2scm (is_last
 144                                           && !unsmob_stencil (p->footer_))));
 145 }
 146
 147 void
 148 Paper_outputter::output_music_output_def (Output_def *odef)
 149 {
 150   output_scheme (scm_list_2 (ly_symbol2scm ("output-paper-def"),
 151                               odef->self_scm ()));
 152 }
 153
 154
 155 void
 156 paper_outputter_dump (void * po, SCM x)
 157 {
 158   Paper_outputter * me = (Paper_outputter*) po;
 159   me->output_scheme (x);
 160 }
 161
 162
 163 void
 164 Paper_outputter::output_stencil (Stencil stil)
 165 {
 166    interpret_stencil_expression (stil.expr (), paper_outputter_dump,
 167                           (void*) this, Offset (0,0));
 168 }
 169
 170 Paper_outputter*
 171 get_paper_outputter (String outname)
 172 {
 173   progress_indication (_f ("paper output to `%s'...",
 174                            outname == "-" ? String ("<stdout>") : outname));
 175   return new Paper_outputter (outname);
 176
 177 }